Cover photo for Marcia Jacobus's Obituary
Marcia Jacobus Profile Photo

Marcia Jacobus

March 2, 1936 — March 20, 2019

Marcia Jacobus (McKernan, Grier), age 83, was reborn this first day of spring, on March 20, 2019 in Boulder, CO. She is finally at peace after a long struggle with cancer. Her final days were spent surrounded by family and angelic care givers at Boulder Manor Care.
Marcia was born in Chicago on March 2, 1936 to John and Ruth Grier. Growing up in Chicago, Marcia had numerous occupations and often worked multiple jobs to help support her family. This selfless nature continued throughout her life as Marcia often placed the needs of others above her own. At her home, extra plates were always set for any person that might enter the house during meal times. And if you were a stray dog or cat that wandered in the yard, you were in luck! Marcia loved all animals.
Marcia is survived by her daughter Jennifer Arens; her son, Ed McKernan; her grandchildren, Dennis Arens, Morgan Arens, Delaney McKernan and Declan McKernan; her brother Tom Grier; and her lovable pets, Lucky, Daisy and Snowball.
She was preceded in death by her husband, Leroy Jacobus; her sister, Florence Grier; and her brothers, Arthur Grier and Leroy Grier.
A Celebration of Life will be held in the Founders Room at Morton Arboretum on April 14th from 11:00AM-3:00PM. The address is 4100 IL-53, Lisle, IL 60532. If you have any pictures of Marcia that you would like to share, please send them to
Knowing Marcia’s love for animals, please consider a donation to DuPage Animal Friends in lieu of flowers. They can be reached at
To order memorial trees or send flowers to the family in memory of Marcia Jacobus, please visit our flower store.

Service Schedule

Past Services


Sunday, April 14, 2019

Starts at 11:00 am (Mountain time)

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Founders Room at Morton Arboretum

4100 Illinois 53
Lisle, IL 60532

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